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प्रश्न
What is meant by the statement, ‘the critical angle for diamond is 24°’?
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उत्तर
It means that when a light ray is incident inside a diamond at an angle greater than 24°, the light will be totally internally reflected.
Or R.I of diamond is 2.14, `[because 1/(sin24^\circ) = 2.14]`
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संबंधित प्रश्न
Draw the diagram of a right-angled isosceles prism which is used to make an invented image erect.
State two conditions necessary for total internal reflection to occur.
If a light ray does not undergo, refraction at the boundary between two media, the angle of incidence is:
If a ray of light passes from medium I to medium II without any change of direction, what can be said about the refractive indices of these media (angle I is not 0)?
State two advantages of using a right-angle prism as a reflector, rather than a plane mirror.
Choose the correct option.
Consider the following phenomena/ applications: P) Mirage, Q) rainbow, R) Optical fibre and S) glittering of a diamond. Total internal reflection is involved in
What is a mirage? How does it occur?
A given ray of light suffers minimum deviation in an equilateral prism P. Additional prism Q and R of identical shape and of the same material as P are now added as shown in the figure. The ray will now suffer ______.
The angle made by incident ray of light with normal of the reflecting surface is called ______.
The diagram below shows a fish in the tank and its image seen on the surface of the water.
Name the phenomenon responsible for the formation of this image.
